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Vue3使用AntV | X6绘制流程图:开箱即用

x6官方地址X6·图编辑引擎 | AntV

官方文档仔细地介绍了很多丰富的功能,这里的demo可以满足基本的使用,具体拓展还需要仔细看文档内容

先上效果图

1、安装

通过 npm 或 yarn 命令安装 X6。

# npm
npm install @antv/x6 --save

# yarn
yarn add @antv/x6

初始化画布

<div id="container"></div>
import { Graph } from '@antv/x6'

const graph = new Graph({
  container: document.getElementById('container'),
  width: 800,
  height: 600,
  background: {
    color: '#F2F7FA',
  },
})

使用插件

import { Snapline } from '@antv/x6-plugin-snapline'

graph.use(
  new Snapline({
    enabled: true,
  }),
)

数据导出

graph.toJSON()

具体依赖package.json

{
  "@antv/x6": "^2.0.0",
  "@antv/x6-plugin-clipboard": "^2.0.0", // 如果使用剪切板功能,需要安装此包
  "@antv/x6-plugin-history": "^2.0.0", // 如果使用撤销重做功能,需要安装此包
  "@antv/x6-plugin-keyboard": "^2.0.0", // 如果使用快捷键功能,需要安装此包
  "@antv/x6-plugin-minimap": "^2.0.0", // 如果使用小地图功能,需要安装此包
  "@antv/x6-plugin-scroller": "^2.0.0", // 如果使用滚动画布功能,需要安装此包
  "@antv/x6-plugin-selection": "^2.0.0", // 如果使用框选功能,需要安装此包
  "@antv/x6-plugin-snapline": "^2.0.0", // 如果使用对齐线功能,需要安装此包
  "@antv/x6-plugin-dnd": "^2.0.0", // 如果使用 dnd 功能,需要安装此包
  "@antv/x6-plugin-stencil": "^2.0.0", // 如果使用 stencil 功能,需要安装此包
  "@antv/x6-plugin-transform": "^2.0.0", // 如果使用图形变换功能,需要安装此包
  "@antv/x6-plugin-export": "^2.0.0", // 如果使用图片导出功能,需要安装此包
  "@antv/x6-react-components": "^2.0.0", // 如果使用配套 UI 组件,需要安装此包
  "@antv/x6-react-shape": "^2.0.0", // 如果使用 react 渲染功能,需要安装此包
  "@antv/x6-vue-shape": "^2.0.0" // 如果使用 vue 渲染功能,需要安装此包
}

本文依赖

"dependencies": {
    "@element-plus/icons-vue": "^2.3.1",
    "element-plus": "^2.7.6",
    "pinia": "^2.1.7",
    "vue": "^3.4.29",
    "vue-router": "^4.3.3",
    "@antv/x6": "latest",
    "@antv/x6-plugin-clipboard": "latest",
    "@antv/x6-plugin-history": "latest",
    "@antv/x6-plugin-keyboard": "latest",
    "@antv/x6-plugin-selection": "latest",
    "@antv/x6-plugin-snapline": "latest",
    "@antv/x6-plugin-stencil": "latest",
    "@antv/x6-plugin-transform": "latest",
    "@antv/x6-plugin-node-editor": "latest",
    "insert-css": "latest"
  },

完整代码,开箱即用

<template>
  <div id="container">
    <div id="stencil"></div>
    <div id="graph-container"></div>
  </div>
</template>
<script setup lang="ts">
import { ref, onMounted } from 'vue'
import { Graph, Shape } from '@antv/x6'
import { Stencil } from '@antv/x6-plugin-stencil'
import { Transform } from '@antv/x6-plugin-transform'
import { Selection } from '@antv/x6-plugin-selection'
import { Snapline } from '@antv/x6-plugin-snapline'
import { Keyboard } from '@antv/x6-plugin-keyboard'
import { Clipboard } from '@antv/x6-plugin-clipboard'
import { History } from '@antv/x6-plugin-history'
// import { NodeEditor } from '@antv/x6-plugin-node-editor'
import insertCss from 'insert-css'

onMounted(() => {
  // 初始化画布
  //- `Graph` 对象用于初始化流程图画布,`container` 指向 HTML 中 `graph-container` 这个 DOM 元素。流程图支持缩放、连线、拖拽等功能。
  const graph = new Graph({
    container: document.getElementById('graph-container'),
    grid: true,
    mousewheel: {
      enabled: true,
      zoomAtMousePosition: true,
      modifiers: 'ctrl',
      minScale: 0.5,
      maxScale: 3
    },
    connecting: {
      router: 'manhattan',
      connector: {
        name: 'rounded',
        args: { radius: 8 }
      },
      anchor: 'center',
      connectionPoint: 'anchor',
      allowBlank: false,
      snap: { radius: 20 },
      createEdge() {
        return new Shape.Edge({
          attrs: {
            line: {
              stroke: '#A2B1C3',
              strokeWidth: 2,
              targetMarker: {
                name: 'block',
                width: 12,
                height: 8
              }
            }
          },
          zIndex: 0
        })
      },
      validateConnection({ targetMagnet }) {
        return !!targetMagnet
      }
    },
    highlighting: {
      magnetAdsorbed: {
        name: 'stroke',
        args: { attrs: { fill: '#5F95FF', stroke: '#5F95FF' } }
      }
    }
  })

  // 插件配置
  //- 通过 `.use()` 方法注册了多个插件,包括 `Transform`(支持调整大小、旋转)、`Selection`(选择功能)、`Snapline`(自动对齐线)、`Keyboard`(键盘支持)等。

  graph
    .use(new Transform({ resizing: true, rotating: true }))
    .use(new Selection({ rubberband: true, showNodeSelectionBox: true }))
    .use(new Snapline())
    .use(new Keyboard())
    .use(new Clipboard())
    .use(new History())

  // 初始化 stencil
  //- `Stencil` 是用于提供左侧工具栏的组件,用户可以从工具栏中拖拽图形到画布中。支持基本图形和系统设计图的两类分组
  const stencil = new Stencil({
    title: '流程图',
    target: graph,
    stencilGraphWidth: 200,
    stencilGraphHeight: 180,
    collapsable: true,
    groups: [
      { title: '基础流程图', name: 'group1' },
      { title: '系统设计图', name: 'group2', graphHeight: 250, layoutOptions: { rowHeight: 70 } }
    ],
    layoutOptions: { columns: 2, columnWidth: 80, rowHeight: 55 }
  })

  document.getElementById('stencil')?.appendChild(stencil.container)
  // #region 快捷键与事件
  graph.bindKey(['meta+c', 'ctrl+c'], () => {
    const cells = graph.getSelectedCells()
    if (cells.length) {
      graph.copy(cells)
    }
    return false
  })
  graph.bindKey(['meta+x', 'ctrl+x'], () => {
    const cells = graph.getSelectedCells()
    if (cells.length) {
      graph.cut(cells)
    }
    return false
  })
  graph.bindKey(['meta+v', 'ctrl+v'], () => {
    if (!graph.isClipboardEmpty()) {
      const cells = graph.paste({ offset: 32 })
      graph.cleanSelection()
      graph.select(cells)
    }
    return false
  })

  // undo redo
  graph.bindKey(['meta+z', 'ctrl+z'], () => {
    if (graph.canUndo()) {
      graph.undo()
    }
    return false
  })
  graph.bindKey(['meta+shift+z', 'ctrl+shift+z'], () => {
    if (graph.canRedo()) {
      graph.redo()
    }
    return false
  })

  // select all
  graph.bindKey(['meta+a', 'ctrl+a'], () => {
    const nodes = graph.getNodes()
    if (nodes) {
      graph.select(nodes)
    }
  })

  // delete
  graph.bindKey('backspace', () => {
    const cells = graph.getSelectedCells()
    if (cells.length) {
      graph.removeCells(cells)
    }
  })

  // zoom
  graph.bindKey(['ctrl+1', 'meta+1'], () => {
    const zoom = graph.zoom()
    if (zoom < 1.5) {
      graph.zoom(0.1)
    }
  })
  graph.bindKey(['ctrl+2', 'meta+2'], () => {
    const zoom = graph.zoom()
    if (zoom > 0.5) {
      graph.zoom(-0.1)
    }
  })

  // 控制连接桩显示/隐藏
  const showPorts = (ports: NodeListOf<SVGElement>, show: boolean) => {
    for (let i = 0, len = ports.length; i < len; i += 1) {
      ports[i].style.visibility = show ? 'visible' : 'hidden'
    }
  }
  graph.on('node:mouseenter', () => {
    const container = document.getElementById('graph-container')!
    const ports = container.querySelectorAll('.x6-port-body') as NodeListOf<SVGElement>
    showPorts(ports, true)
  })
  graph.on('node:mouseleave', () => {
    const container = document.getElementById('graph-container')!
    const ports = container.querySelectorAll('.x6-port-body') as NodeListOf<SVGElement>
    showPorts(ports, false)
  })
  // 注册自定义节点
  //- 通过 `Graph.registerNode` 注册了不同形状(矩形、圆形、多边形等)的自定义节点,并且定义了连接桩的位置和样式。
  const ports = {
    groups: {
      top: {
        position: 'top',
        attrs: {
          circle: {
            r: 4,
            magnet: true,
            stroke: '#5F95FF',
            strokeWidth: 1,
            fill: '#fff',
            style: { visibility: 'hidden' }
          }
        }
      },
      right: {
        position: 'right',
        attrs: {
          circle: {
            r: 4,
            magnet: true,
            stroke: '#5F95FF',
            strokeWidth: 1,
            fill: '#fff',
            style: { visibility: 'hidden' }
          }
        }
      },
      bottom: {
        position: 'bottom',
        attrs: {
          circle: {
            r: 4,
            magnet: true,
            stroke: '#5F95FF',
            strokeWidth: 1,
            fill: '#fff',
            style: { visibility: 'hidden' }
          }
        }
      },
      left: {
        position: 'left',
        attrs: {
          circle: {
            r: 4,
            magnet: true,
            stroke: '#5F95FF',
            strokeWidth: 1,
            fill: '#fff',
            style: { visibility: 'hidden' }
          }
        }
      }
    },
    items: [{ group: 'top' }, { group: 'right' }, { group: 'bottom' }, { group: 'left' }]
  }

  // 注册不同形状的自定义节点
  Graph.registerNode('custom-rect', {
    inherit: 'rect',
    width: 66,
    height: 36,
    attrs: {
      body: { strokeWidth: 1, stroke: '#5F95FF', fill: '#EFF4FF' },
      text: { fontSize: 12, fill: '#262626' }
    },
    ports: { ...ports },
    //支持文字编辑
    tools: [
      {
        name: 'node-editor',
        args: {
          attrs: {
            backgroundColor: '#EFF4FF'
          }
        }
      }
    ]
  })

  Graph.registerNode('custom-polygon', {
    inherit: 'polygon',
    width: 66,
    height: 36,
    attrs: {
      body: { strokeWidth: 1, stroke: '#5F95FF', fill: '#EFF4FF' },
      text: { fontSize: 12, fill: '#262626' }
    },
    ports: { ...ports, items: [{ group: 'top' }, { group: 'bottom' }] },
    //支持文字编辑
    tools: [
      {
        name: 'node-editor',
        args: {
          attrs: {
            backgroundColor: '#EFF4FF'
          }
        }
      }
    ]
  })

  Graph.registerNode('custom-circle', {
    inherit: 'circle',
    width: 45,
    height: 45,
    attrs: {
      body: { strokeWidth: 1, stroke: '#5F95FF', fill: '#EFF4FF' },
      text: { fontSize: 12, fill: '#262626' }
    },
    ports: { ...ports },
    //支持文字编辑
    tools: [
      {
        name: 'node-editor',
        args: {
          attrs: {
            backgroundColor: '#EFF4FF'
          }
        }
      }
    ]
  })

  // 加载图形节点到 stencil
  const r1 = graph.createNode({
    shape: 'custom-rect',
    label: '开始',
    attrs: { body: { rx: 20, ry: 26 } }
  })
  const r2 = graph.createNode({ shape: 'custom-rect', label: '过程' })
  const r3 = graph.createNode({
    shape: 'custom-rect',
    label: '可选过程',
    attrs: { body: { rx: 6, ry: 6 } }
  })
  const r4 = graph.createNode({
    shape: 'custom-polygon',
    label: '决策',
    attrs: { body: { refPoints: '0,10 10,0 20,10 10,20' } }
  })
  const r5 = graph.createNode({
    shape: 'custom-polygon',
    label: '数据',
    attrs: { body: { refPoints: '10,0 40,0 30,20 0,20' } }
  })
  const r6 = graph.createNode({ shape: 'custom-circle', label: '连接' })

  stencil.load([r1, r2, r3, r4, r5, r6], 'group1')
  //------------------------------------------文字编辑--------------------
  //   const source = graph.addNode({
  //     x: 180,
  //     y: 60,
  //     width: 100,
  //     height: 40,
  //     attrs: {
  //       body: {
  //         stroke: '#5F95FF',
  //         fill: '#EFF4FF',
  //         strokeWidth: 1
  //       }
  //     },
  //     tools: [
  //       {
  //         name: 'node-editor',
  //         args: {
  //           attrs: {
  //             backgroundColor: '#EFF4FF'
  //           }
  //         }
  //       }
  //     ]
  //   })

  //   const target = graph.addNode({
  //     x: 320,
  //     y: 250,
  //     width: 100,
  //     height: 40,
  //     attrs: {
  //       body: {
  //         stroke: '#5F95FF',
  //         fill: '#EFF4FF',
  //         strokeWidth: 1
  //       }
  //     },
  //     tools: [
  //       {
  //         name: 'node-editor',
  //         args: {
  //           attrs: {
  //             backgroundColor: '#EFF4FF'
  //           }
  //         }
  //       }
  //     ]
  //   })

  //   graph.addEdge({
  //     source,
  //     target,
  //     attrs: {
  //       line: {
  //         stroke: '#A2B1C3',
  //         strokeWidth: 2
  //       }
  //     },
  //     tools: [
  //       {
  //         name: 'edge-editor',
  //         args: {
  //           attrs: {
  //             backgroundColor: '#fff'
  //           }
  //         }
  //       }
  //     ]
  //   })
  //-------------------------------------------------------
  // 加载图像节点
  const imageShapes = [
    {
      label: 'Client',
      image: 'https://gw.alipayobjects.com/zos/bmw-prod/687b6cb9-4b97-42a6-96d0-34b3099133ac.svg'
    },
    {
      label: 'Http',
      image: 'https://gw.alipayobjects.com/zos/bmw-prod/dc1ced06-417d-466f-927b-b4a4d3265791.svg'
    },
    {
      label: 'Api',
      image: 'https://gw.alipayobjects.com/zos/bmw-prod/c55d7ae1-8d20-4585-bd8f-ca23653a4489.svg'
    },
    {
      label: 'Sql',
      image: 'https://gw.alipayobjects.com/zos/bmw-prod/6eb71764-18ed-4149-b868-53ad1542c405.svg'
    },
    {
      label: 'Clound',
      image: 'https://gw.alipayobjects.com/zos/bmw-prod/c36fe7cb-dc24-4854-aeb5-88d8dc36d52e.svg'
    },
    {
      label: 'Mq',
      image: 'https://gw.alipayobjects.com/zos/bmw-prod/2010ac9f-40e7-49d4-8c4a-4fcf2f83033b.svg'
    }
  ]

  const imageNodes = imageShapes.map((item) =>
    graph.createNode({
      shape: 'custom-image',
      label: item.label,
      attrs: { image: { 'xlink:href': item.image } }
    })
  )
  //- `stencil.load()` 方法用于将自定义节点加载到 Stencil 中,用户可以从左侧拖拽这些节点到画布上。
  stencil.load(imageNodes, 'group2')

  // 添加 CSS 样式
  //- 使用 `insertCss()` 动态添加了样式,使得画布、工具栏以及选择框等元素的样式更加统一。
  insertCss(`
    #container {
      display: flex;
      border: 1px solid #dfe3e8;
    }
    #stencil {
      width: 180px;
      height: 100%;
      position: relative;
      border-right: 1px solid #dfe3e8;
    }
    #graph-container {
      width: calc(100% - 180px);
      height: 100%;
    }
    .x6-widget-stencil, .x6-widget-stencil-title, .x6-widget-stencil-group-title {
      background-color: #fff !important;
    }
    .x6-widget-transform

, .x6-widget-selection-box, .x6-widget-selection-inner {
      border: 1px solid #239edd;
    }
  `)
})
</script>
<style scoped lang="scss">
#container {
  display: flex;
  height: 50vh;
}
#stencil {
  width: 180px;
  height: 100%;
  border-right: 1px solid #dfe3e8;
}
#graph-container {
  flex-grow: 1;
  width: 800px;
}
</style>


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